以Let's do it为题目写一篇英语作文

那就用it代表sports好了吧,内容如下：
I think it's very important for everyone to do sports.I like sports because they're not only good for my health but also good for my study.My favorite sport is swimming.Whenever I am free,I will have a swim with my friends in the swimming pool.After swimming,I usually feel happy and relaxed.What's more,Ican put more energy into my study.So let's do sports,and we will become stronger and stronger.